I will bumb thread a bit. I was making a service with big plans and i was looking for CMS. Tried joomla but couldn`t really get used to it, maybe i will try again, but for 100% i can encourage to use MODx. For me it`s very nice style, flexible, with nice community (maybe not as big as joomla and nearly 0 in my country but still), it`s stable, have pretty nice extras download avaible and so on. I realy like it.

For simple like main with news and some sub-pages i like FrogCMS. It`s easy for customers for example.